1. Letters Creator: Piesaar, Carlos Published / Created: 1968-1970, undated Call Number: GEN MSS 1039 Collection Title: Carlos Piesaar correspondence Container / Volume: Box 1 | 1-2 Image Count: 96 Resource Type: Archives or Manuscripts Found in: Beinecke Rare Book and Manuscript Library > Letters
2. [Letter: 1938 October 28, Piet Mondrian to Carel and Mary Mondriaan] Creator: Mondrian, Piet, 1872-1944 Published / Created: 1938 October 28 Call Number: GEN MSS 1097 Collection Title: Carel Mondriaan Papers Container / Volume: Box 1 | Folder 1 Image Count: 10 Resource Type: Archives or Manuscripts Found in: Beinecke Rare Book and Manuscript Library > [Letter: 1938 October 28, Piet Mondrian to Carel and Mary Mondriaan]